of the metal for common work. A pound of iron oxide paint, when the frame. By turning the crank handle, shown in the en- upon which the paint is to be applied, that is, it is to be im- mixed ready for use in the proportions of two thirds oxide to graving, motion is imparted through the gearing and… … Fig. 2—LOTZ ENGRAVING MACHINE, quired pattern is fixed in the position ing manufacturers. The wheels are mounted ona 1 inch steel arbor, and are located three on shown, and operates as already described. 2 per cent of sulphuric acid. The metal is afterwards rinsed each end, a cone pulley by which…
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